Aptitude - Time and Distance - Discussion
Discussion Forum : Time and Distance - General Questions (Q.No. 4)
4.
A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is:
Answer: Option
Explanation:
Let speed of the car be x kmph.
| Then, speed of the train = | 150 | x | = |  |
3 | x |  kmph. |
| 100 | 2 |
 |
75 | - | 75 | = | 125 |
| x | (3/2)x | 10 x 60 |
 |
75 | - | 50 | = | 5 |
| x | x | 24 |
| x = |
|
25 x24 | |
= 120 kmph. |
| 5 |
Discussion:
342 comments Page 1 of 35.
Mythili said:
2 decades ago
Can you exlpain how 150x/100 came?
(1)
Chandra mouli said:
2 decades ago
Let car speed be xkmph
then train speed is 50% more than car speed
ie 50/100*x
then train speed is 50% more than car speed
ie 50/100*x
Komal said:
2 decades ago
I think there should be 50x/100 & not 150x/100 is it?
Xyz said:
2 decades ago
When we take 50x/100
we get x=[-75* 24]/5 = - 360kmph
its not in the option
we get x=[-75* 24]/5 = - 360kmph
its not in the option
Mohit said:
2 decades ago
Hey look it say train travels 50% faster then car. Suppose car travels at x speed than train travels at 50x. So its 150/100 thats as a % age.
Shalini said:
2 decades ago
Hae even though its % it must me 50x/100 only na?
(1)
Paresh said:
2 decades ago
Can any one please tell me how that 125/(10x60) came?
(1)
Vidu said:
2 decades ago
Please some one let me know how 150/100 came.
Rakesk said:
2 decades ago
50 % more means not 50/100. car has already 100 %.50 % more means 150/100
(2)
Raj said:
1 decade ago
Hi, actually we get speed as 25 only since
Speed = Distance/(Time x Extra time)
Speed = 25/(125/600) => (25 x 24)/5 = 120.
Speed = Distance/(Time x Extra time)
Speed = 25/(125/600) => (25 x 24)/5 = 120.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers